www.wristband.com/GuidetoAllergyAwarenessWristBands.aspxA guide to Allergy Awareness Wristbands. A number of allergies can be life-threatening for the people afflicted with these issues. People with potentially life-threatening allergies can make their medical sensitivity known to those who might unknowingly expose them to the allergen in question by wearing medical bracelets or wristbands. A wristband alerts others that the person has a sensitivity that could make them ill.